diff --git a/EXE_MachOpt.cpp b/EXE_MachOpt.cpp
index d893287..c821a3e 100644
--- a/EXE_MachOpt.cpp
+++ b/EXE_MachOpt.cpp
@@ -145,6 +145,17 @@ ExeOptMachSetAllGroupDependencesAsMandatory( bool bAllMandatory)
    return ( s_pMO->SetAllGroupsAsMandatory( bAllMandatory)) ;
 }
 
+//----------------------------------------------------------------------------
+bool
+ExeOptMachSetOptimizationForGroups( bool bOptForGroups)
+{
+  // Se oggetto non istanziato, errore
+   if ( IsNull( s_pMO))
+      return false ;
+  // Imposto il Flag
+   return ( s_pMO->SetOptimizationForGroups( bOptForGroups)) ;
+}
+
 //----------------------------------------------------------------------------
 bool
 ExeOptMachGetResult( INTVECTOR& vIds)
diff --git a/EgtExecutor.rc b/EgtExecutor.rc
index 2eb5741..f12cb4b 100644
Binary files a/EgtExecutor.rc and b/EgtExecutor.rc differ
diff --git a/LUA_MachOpt.cpp b/LUA_MachOpt.cpp
index 39b047a..a9c5404 100644
--- a/LUA_MachOpt.cpp
+++ b/LUA_MachOpt.cpp
@@ -203,6 +203,21 @@ LuaOptMachSetAllGroupDependencesAsMandatory( lua_State* L)
    return 1 ;
 }
 
+//-------------------------------------------------------------------------------
+static int
+LuaOptMachSetOptimizationForGroups( lua_State* L)
+{
+  // 1 Parametro : bOptForGroups
+   bool bOptForGroups = false ;
+   LuaCheckParam( L, 1, bOptForGroups) ;
+   LuaClearStack( L) ;
+  // Imposto il Flag
+   bool bOk = ExeOptMachSetOptimizationForGroups( bOptForGroups) ;
+  // Restituisco il risultato
+   LuaSetParam( L, bOk) ;
+   return 1 ;
+}
+
 //-------------------------------------------------------------------------------
 static int
 LuaOptMachGetResult( lua_State* L)
@@ -235,6 +250,7 @@ LuaInstallMachiningOptimization( LuaMgr& luaMgr)
    bOk = bOk && luaMgr.RegisterFunction( "EgtOptMachAddDependence", LuaOptMachAddDependence) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtOptMachAddSuggestedDependence", LuaOptMachAddSuggestedDependence) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtOptMachSetAllGroupsDependencesAsMandatory", LuaOptMachSetAllGroupDependencesAsMandatory) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtOptMachSetOptimizationForGroups", LuaOptMachSetOptimizationForGroups) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtOptMachGetResult", LuaOptMachGetResult) ;
    return bOk ;
 }
\ No newline at end of file